Gary Brecka emphasized the foundational role of testosterone in men’s health in a recent post, linking it directly to key lifestyle factors like cholesterol, strength training, and sunlight exposure.

“There’s no such thing as men’s health without talking about testosterone,” said Gary Brecka in a post on X. “And there’s no testosterone without cholesterol, heavy lifting, and sunlight.”

Brecka’s post reflects a growing consensus in functional and integrative medicine that hormone optimization is central to men’s physical and mental well-being. Rather than focusing solely on pharmaceuticals or symptom treatment, he advocates addressing the biological building blocks that support natural testosterone production.

Studies have shown that dietary cholesterol, resistance training, and vitamin D from sunlight are all positively associated with healthy testosterone levels. Conversely, modern stressors—such as processed foods, sedentary lifestyles, and artificial light exposure—have been linked to declining testosterone in men over the past several decades.

Gary Brecka is a human biologist and co-founder of 10X Health System. He promotes personalized, data-driven wellness programs focused on hormone health, genetics, and lifestyle design to improve energy, performance, and longevity.